Acres to Hectares
Convert acres to hectares (acres to ha). 1 acres = 0.40468564224 ha. Use the calculator, formula and conversion table.
How to convert acres to hectares
Multiply the amount in acres by 0.40468564224 to get hectares. The displayed factor and results are rounded to 12 significant digits.
ha = acres × 0.40468564224Worked example
1 acres = 0.40468564224 ha. Change the amount in the calculator above to use your own value.
Units and assumptions
Area uses squared length factors: one square foot is exactly 0.09290304 square metres. Acres are international acres; hectares equal 10,000 square metres.
Calculator results use floating-point arithmetic and are rounded for display. The reference table below uses up to 12 significant digits.
Acres to Hectares table
| Acres (acres) | Hectares (ha) |
|---|---|
| 0 | 0 |
| 1 | 0.40468564224 |
| 5 | 2.0234282112 |
| 10 | 4.0468564224 |
| 25 | 10.117141056 |
| 100 | 40.468564224 |
| 1,000 | 404.68564224 |
About this conversion
What is the formula for acres to hectares?
ha = acres × 0.40468564224. Multiply the amount in acres by 0.40468564224 to get hectares. The displayed factor and results are rounded to 12 significant digits.
How do I convert back to acres?
Use the hectares to acres calculator to reverse this conversion. You can also use Swap units in the calculator above.
Can I use a different pair of units?
Choose another unit in the calculator, or open the area converter to browse all supported pairs.